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Bill Dukes has $100,000 invested in a 2-stock portfolio. $62,500 is invested in Stock X and the remainder is invested in Stock Y. X's beta is 1.50 and Y's beta is 0.70. What is the portfolio's beta? Do not round your intermediate calculations. Round the final answer to 2 decimal places.
There are 4 entrances to a building in Philadelphia. The bldg maintenance super would like to know if the entrances are equally utilized. To investigate, 400 people were observed entering the building.
Then apply regression analysis in which the percentage change in the trade balance is the dependent variable and the percentage change in the exchange rate is the independent variable. Is there a significant relationship between the two variables?..
A consumer products company surveys 30 shoppers at a mall and asks each one if he/she likes the packaging of a new soap product. The results of the survey are:
Find a report of an opinion poll on the Internet or in a newspaper. Write a paragraph summarizing one of the poll's results. Be sure to mention sample size.
If we define a random variable to have two possible outcomes, the monthly rainfall in June, July, or August to be less than 1 in. and the monthly rainfall.
usually statisticians use an alpha level of either 0.01 or 0.05 or 0.10. describe what a statistician is trying to
Find a 95% confidence interval for the proportion of all customers who would benefit by purchasing the extended service plan.
When testing the hypothesis that at least 25% of the people who receive the coupons for the free membership will use the coupon.
The ELISA test for AIDS was used in the screening of blood donations in the 1990s. As with most medical diagnostic tests, the ELISA test is not infallible.
Assume the bills are normally distributed with standard deviation $18.71. Find the value that separate the lower 44% of the bills from the rest.
Based on the histogram, find the proportion of commute distances in the sample that are at least 16 miles. Write your answer as a decimal, and do not round your answer.
Wild horses. Large herds of wild horses can become a problem on some federal lands in the West. How many herds of wild horses were studied
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